John,
Thanks for keeping the issue alive, and replying to Mark Boolootian.
In your next post, it might be worth clarifying for Mark who seems
interested in i/o, that each Cray CPU has a fourth port to memory for i/o.
I've no idea how to test that in parallel with a SAXPY.
Charles Grassl has provided me with results from the C-90.
You are free to post them, and it would be good to do so, but point
out that the memory is still far short of the final configuration.
Note that they are up to 7 CPUs.
Cheers,
Rob. Bell.